New in the product range of Alpha is an unprecedentedly fast sectional door that also offers exceptional insulation performance: the Alpha Helix. The Helix, Spiral-Door opens 6 x faster than similar sectional doors and is therefore extremely suitable in an environment where you have intensive logistic movements and need for Horizontal Space . This door opens fast and depending on the door size up to 1.1 M per second and real savings on the energy cost can be achieved. Traditionally, two doors are often mounted in frequently used exterior openings; an insulated door for use at night and a high speed door that is used during the day. The new Alpha Helix / S600 combines the best of both worlds in a single product. An investment that pays for itself in next to no time and the Size of the door can reach up to 5 widths to 5 m height .